500bea532d
* Add feature flag for external Fizz runtime Only enabled for www for now * Add option to load Fizz runtime from external file When unstable_externalRuntimeSrc is provided, React will inject a script tag that points to the provided URL. Then, instead of emitting inline scripts, the Fizz stream will emit HTML nodes with data attributes that encode the instructions. The external runtime will detect these with a mutation observer and translate them into runtime commands. This part isn't implemented in this PR, though — all this does is set up the option to use an external runtime, and inject the script tag. The external runtime is injected at the same time as bootstrap scripts.
120 lines
4.4 KiB
JavaScript
120 lines
4.4 KiB
JavaScript
/**
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @flow
|
|
*/
|
|
|
|
import typeof * as FeatureFlagsType from 'shared/ReactFeatureFlags';
|
|
import typeof * as ExportsType from './ReactFeatureFlags.www';
|
|
import typeof * as DynamicFeatureFlags from './ReactFeatureFlags.www-dynamic';
|
|
|
|
// Re-export dynamic flags from the www version.
|
|
const dynamicFeatureFlags: DynamicFeatureFlags = require('ReactFeatureFlags');
|
|
|
|
export const {
|
|
disableInputAttributeSyncing,
|
|
enableTrustedTypesIntegration,
|
|
disableSchedulerTimeoutBasedOnReactExpirationTime,
|
|
warnAboutSpreadingKeyToJSX,
|
|
replayFailedUnitOfWorkWithInvokeGuardedCallback,
|
|
enableFilterEmptyStringAttributesDOM,
|
|
enableLegacyFBSupport,
|
|
deferRenderPhaseUpdateToNextBatch,
|
|
enableDebugTracing,
|
|
skipUnmountedBoundaries,
|
|
createRootStrictEffectsByDefault,
|
|
enableUseRefAccessWarning,
|
|
disableNativeComponentFrames,
|
|
disableSchedulerTimeoutInWorkLoop,
|
|
enableLazyContextPropagation,
|
|
enableSyncDefaultUpdates,
|
|
enableCapturePhaseSelectiveHydrationWithoutDiscreteEventReplay,
|
|
enableClientRenderFallbackOnTextMismatch,
|
|
enableTransitionTracing,
|
|
} = dynamicFeatureFlags;
|
|
|
|
// On WWW, __EXPERIMENTAL__ is used for a new modern build.
|
|
// It's not used anywhere in production yet.
|
|
|
|
export const enableStrictEffects: boolean =
|
|
__DEV__ && dynamicFeatureFlags.enableStrictEffects;
|
|
export const debugRenderPhaseSideEffectsForStrictMode = __DEV__;
|
|
export const enableProfilerTimer = __PROFILE__;
|
|
export const enableProfilerCommitHooks = __PROFILE__;
|
|
export const enableProfilerNestedUpdatePhase = __PROFILE__;
|
|
export const enableProfilerNestedUpdateScheduledHook: boolean =
|
|
__PROFILE__ && dynamicFeatureFlags.enableProfilerNestedUpdateScheduledHook;
|
|
export const enableUpdaterTracking = __PROFILE__;
|
|
|
|
export const enableSuspenseAvoidThisFallback = true;
|
|
export const enableSuspenseAvoidThisFallbackFizz = false;
|
|
export const enableCPUSuspense = true;
|
|
export const enableFloat = false;
|
|
export const enableUseHook = true;
|
|
export const enableUseMemoCacheHook = true;
|
|
export const enableUseEventHook = true;
|
|
export const enableHostSingletons = false;
|
|
|
|
// Logs additional User Timing API marks for use with an experimental profiling tool.
|
|
export const enableSchedulingProfiler: boolean =
|
|
__PROFILE__ && dynamicFeatureFlags.enableSchedulingProfiler;
|
|
|
|
// Note: we'll want to remove this when we to userland implementation.
|
|
// For now, we'll turn it on for everyone because it's *already* on for everyone in practice.
|
|
// At least this will let us stop shipping <Profiler> implementation to all users.
|
|
export const enableSchedulerDebugging = true;
|
|
export const warnAboutDeprecatedLifecycles = true;
|
|
export const disableLegacyContext = __EXPERIMENTAL__;
|
|
export const warnAboutStringRefs = false;
|
|
export const warnAboutDefaultPropsOnFunctionComponents = false;
|
|
export const enableGetInspectorDataForInstanceInProduction = false;
|
|
|
|
export const enableCache = true;
|
|
export const enableCacheElement = true;
|
|
|
|
export const disableJavaScriptURLs = true;
|
|
|
|
// TODO: www currently relies on this feature. It's disabled in open source.
|
|
// Need to remove it.
|
|
export const disableCommentsAsDOMContainers = false;
|
|
|
|
export const disableModulePatternComponents = true;
|
|
|
|
export const enableCreateEventHandleAPI = true;
|
|
|
|
export const enableScopeAPI = true;
|
|
|
|
export const enableSuspenseCallback = true;
|
|
|
|
export const enableLegacyHidden = true;
|
|
|
|
export const enableComponentStackLocations = true;
|
|
|
|
export const disableTextareaChildren = __EXPERIMENTAL__;
|
|
|
|
// Enable forked reconciler. Piggy-backing on the "variant" global so that we
|
|
// don't have to add another test dimension. The build system will compile this
|
|
// to the correct value.
|
|
export const enableNewReconciler = __VARIANT__;
|
|
|
|
export const allowConcurrentByDefault = true;
|
|
|
|
export const deletedTreeCleanUpLevel = 3;
|
|
|
|
export const consoleManagedByDevToolsDuringStrictMode = true;
|
|
export const enableServerContext = true;
|
|
|
|
// Some www surfaces are still using this. Remove once they have been migrated.
|
|
export const enableUseMutableSource = true;
|
|
|
|
export const enableCustomElementPropertySupport = __EXPERIMENTAL__;
|
|
|
|
export const useModernStrictMode = false;
|
|
export const enableFizzExternalRuntime = true;
|
|
|
|
// Flow magic to verify the exports of this file match the original version.
|
|
((((null: any): ExportsType): FeatureFlagsType): ExportsType);
|